Are you using the International Phonetic Alphabet in the Merriam-Webster Learner's Dictionary?
Answer
Yes, the pronunciation symbols used in the print and online versions of Merriam-Webster’s Learner’s Dictionary are from the International Phonetic Alphabet, commonly known as the IPA.
For those of you who aren’t sure what the IPA is, it is a universal system of writing words from any language, in order to show exactly how the sounds are pronounced. The first version of the IPA was created in 19th century France, and the symbols are mostly based on letters used in Latin.